Since in database there are some records that have Null value of them, this code was being created to filter the recordset that have no value assigned in "rsActQty" or "rsSumQty". However no matter what I tried, it seemed that this code cannot detect Null value. And I don't know what did I done wrong. So could you please give me some suggestion? Thank you. (This db was in MSACCESS)
What I want is : - To display only records that have value in either "rsActQty" OR "rsSumQty". - When one of this fields was NULL assign "0" to it.
<%
if Rs.eof then
response.write "<tr><td colspan=""6""> "
call displayNotFoundRecord
response.write "</td></tr>"
Else
Dim ActQty, sumQty, Total, rsActQty, rsSumQty, rsPdtn_qty_est, inv_date, res_date
Do while Rs.AbsolutePage = strPageCurrent And Not Rs.EOF
inv_id = rs.fields.item("inv_idRS")
rsActQty = rs.fields.item("sumOfinv_qty_act")
rsSumQty = rs.fields.item("SumOfres_qty")
rsPdtn_qty_est = rs.fields.item("SumOfpdtn_qty_est")
inv_date = rs.fields.item("inv_dateRS")
res_date = rs.fields.item("res_dateRS")
if rsActQty = "" then
ActQty = 0
else
ActQty = rsActQty
end if
if rsSumQty = "" then
sumQty = 0
else
sumQty = rsSumQty
end if
if rsActQty <> "" OR rsSumQty <> "" then
if inv_date = "" then
dateshow = res_date
else
dateshow = inv_date
end if
if res_date = "" then
dateshow = res_date
else
dateshow = res_date
end if
total = rs.fields.item("Total")
%>
<tr class='difcursor'>
<td class="btline" width="25" align="center"><input type="checkbox" name="inv_id" value="<%=inv_id%>" onClick="highlightRow(this,'#FFFFCC','#EFF4FA');"></td>
<td class="btline" <%=genLink(inv_id)%> nowrap style="padding-right: 10px"> <%=rs.fields.item("pd_id")%> </td>
<td class="btline" <%=genLink(inv_id)%> nowrap style="padding-right: 10px"> <%=rs.fields.item("pd_name")%></td>
<td class="btline" <%=genLink(inv_id)%> nowrap style="padding-right: 10px"> <%=PcsToDz(ActQty)%></td>
<td class="btline" <%=genLink(inv_id)%> nowrap style="padding-right: 10px"> <%'=PcsToDz(rs.fields.item("SumOfpdtn_qty_est"))%></td>
<td class="btline" <%=genLink(inv_id)%> nowrap style="padding-right: 10px"> <%=dateshow%></td>
<td class="btline" <%=genLink(inv_id)%> nowrap style="padding-right: 10px"> <%=PcsToDz(sumQty)%></td>
<td class="btline" <%=genLink(inv_id)%> nowrap style="padding-right: 10px"> <%=PcsTODz(Total)%></td>
<td class="btline"></td>
</tr>
<%
end if
Rs.movenext
Loop
End if
Rs.close
set Rs=nothing
Call DBConnClose()
%>
Try using the isNull function. For instance
if not isNull(rs.fields.item("sumOfinv_qty_act")) then
ActQty = rs.fields.item("sumOfinv_qty_act")
else
ActQty = 0
end if
Null is not same as blank value.
You could try forcing the null to a string and do the comparing:
rsActQty = "" & rs.fields.item("sumOfinv_qty_act")
rsSumQty = "" & rs.fields.item("SumOfres_qty")
you could also handle null in your sql query like:
select iif(isnull(fieldname),0,fieldname) as fieldname from table
which will return a 0 for the null value.
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